`56.73+32.88+45.23=?`

Options

A. 130.84
B. 134.84
C. 140.84
D. 144.84

Explanation

To solve the problem \( 56.73 + 32.88 + 45.23 \), we will follow these steps:

### Step 1: Add the first two numbers
First, we will add \( 56.73 \) and \( 32.88 \).

\[ 56.73 + 32.88 \]

Align the numbers by their decimal points:

```
56.73
+ 32.88
-------
```

Now, we add the numbers column by column, starting from the right:

- **Hundredths place:** \( 3 + 8 = 11 \) (write down 1 and carry over 1)
- **Tenths place:** \( 7 + 8 + 1 = 16 \) (write down 6 and carry over 1)
- **Units place:** \( 6 + 2 + 1 = 9 \)
- **Tens place:** \( 5 + 3 = 8 \)

So, we have:

\[ 56.73 + 32.88 = 89.61 \]

### Step 2: Add the result to the third number
Next, we will add the result \( 89.61 \) to \( 45.23 \).

\[ 89.61 + 45.23 \]

Align the numbers by their decimal points:

```
89.61
+ 45.23
-------
```

Now, we add these numbers column by column:

- **Hundredths place:** \( 1 + 3 = 4 \)
- **Tenths place:** \( 6 + 2 = 8 \)
- **Units place:** \( 9 + 5 = 14 \) (write down 4 and carry over 1)
- **Tens place:** \( 8 + 4 + 1 = 13 \)

So, we have:

\[ 89.61 + 45.23 = 134.84 \]

### Final Answer
Thus, the final answer is:

\[ 56.73 + 32.88 + 45.23 = 134.84 \]

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